Bug#852881: dfwinreg: FTBFS: Test failures

[Hilko Bengen]

* Lucas Nussbaum:

> Source: dfwinreg
> Version: 20160428-1
> Severity: serious
> Tags: stretch sid
> User: debian-qa at lists.debian.org
> Usertags: qa-ftbfs-20170128 qa-ftbfs
> Justification: FTBFS on amd64
>
> Hi,
>
> During a rebuild of all packages in sid, your package failed to build on
> amd64.

It looks like this happened because of the recent upload of a new
upstream version of construct, in which upstream entirely broke the API.

Cheers,
-Hilko